Usage of Startactivityforresult (Android)
Last Update:2016-03-14
Source: Internet
Author: User
<span id="Label3"></p><p><p>1, The first page of the Activity.java</p></p><pre><span style="color: #0000ff;"><span style="color: #0000ff;"></span> package</span><span style="color: #000000;"><span style="color: #000000;">cn.buaa.z1;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Import</span></span><span style="color: #000000;"><span style="color: #000000;">android.content.Intent;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Import</span></span><span style="color: #000000;"><span style="color: #000000;">android.support.v7.app.AppCompatActivity;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Import</span></span><span style="color: #000000;"><span style="color: #000000;">android.os.Bundle;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Import</span></span><span style="color: #000000;"><span style="color: #000000;">android.view.View;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Import</span></span><span style="color: #000000;"><span style="color: #000000;">android.widget.EditText;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">class</span></span>Mainactivity<span style="color: #0000ff;"><span style="color: #0000ff;">extends</span></span><span style="color: #000000;"><span style="color: #000000;">appcompatactivity {@Override</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">protected</span></span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">onCreate (Bundle Savedinstancestate) {</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Super</span></span><span style="color: #000000;"><span style="color: #000000;">. OnCreate (savedinstancestate); Setcontentview (r.layout.activity_main); } </span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">Open (view view) {Intent Intent</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;">New</span></span>Intent ("sec"<span style="color: #000000;"><span style="color: #000000;">); Startactivityforresult (intent,</span></span>1<span style="color: #000000;"><span style="color: #000000;">); } @Override</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">protected</span></span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span>Onactivityresult (<span style="color: #0000ff;"><span style="color: #0000ff;">int</span></span>requestcode,<span style="color: #0000ff;"><span style="color: #0000ff;">int</span></span><span style="color: #000000;"><span style="color: #000000;">resultcode, Intent Data) { </span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Super</span></span><span style="color: #000000;"><span style="color: #000000;">. Onactivityresult (requestcode, resultcode, data); </span></span><span style="color: #0000ff;"><span style="color: #0000ff;">if</span></span>(requestcode ==1 && ResultCode = = 1<span style="color: #000000;"><span style="color: #000000;">) {String msg</span></span>= Data.getstringextra ("msg")<span style="color: #000000;"><span style="color: #000000;">); EditText et</span></span>=<span style="color: #000000;"><span style="color: #000000;">(EditText) Findviewbyid (r.id.et1); Et.settext (msg); } }}</span></span></pre><p><p>2, The second page of the Activity.java</p></p><pre><span style="color: #0000ff;"><span style="color: #0000ff;"></span> package</span><span style="color: #000000;"><span style="color: #000000;">cn.buaa.z1;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Import</span></span><span style="color: #000000;"><span style="color: #000000;">android.content.Intent;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Import</span></span><span style="color: #000000;"><span style="color: #000000;">android.support.v7.app.AppCompatActivity;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Import</span></span><span style="color: #000000;"><span style="color: #000000;">android.os.Bundle;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Import</span></span><span style="color: #000000;"><span style="color: #000000;">android.view.View;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Import</span></span><span style="color: #000000;"><span style="color: #000000;">android.widget.EditText;</span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">class</span></span>Main2activity<span style="color: #0000ff;"><span style="color: #0000ff;">extends</span></span><span style="color: #000000;"><span style="color: #000000;">appcompatactivity {</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Private</span></span><span style="color: #000000;"><span style="color: #000000;">EditText et; @Override</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">protected</span></span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">onCreate (Bundle Savedinstancestate) {</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">Super</span></span><span style="color: #000000;"><span style="color: #000000;">. OnCreate (savedinstancestate); Setcontentview (r.layout.activity_main2); } </span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></span> public</span> <span style="color: #0000ff;"><span style="color: #0000ff;">void</span></span><span style="color: #000000;"><span style="color: #000000;">retu (view view) {et</span></span>=<span style="color: #000000;"><span style="color: #000000;">(EditText) Findviewbyid (r.id.et2); Intent Intent</span></span>=<span style="color: #0000ff;"><span style="color: #0000ff;"></span> this</span><span style="color: #000000;"><span style="color: #000000;">. Getintent (); Intent.putextra (</span></span>"msg"<span style="color: #000000;"><span style="color: #000000;">, Et.gettext (). toString ()); Setresult (</span></span>1<span style="color: #000000;"><span style="color: #000000;">, intent); Finish (); }}</span></span></pre><p><p>3. Layout of the first page</p></p><pre><span style="color: #0000ff;"><span style="color: #0000ff;"><?</span></span><span style="color: #ff00ff;"><span style="color: #ff00ff;">XML version= "1.0" encoding= "utf-8"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">?></span></span><span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">LinearLayout</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">xmlns:android</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "http://schemas.android.com/apk/res/android"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Xmlns:tools</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "http://schemas.android.com/tools"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_width</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "match_parent"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_height</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "match_parent"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:paddingbottom</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@dimen/activity_vertical_margin"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:paddingleft</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@dimen/activity_horizontal_margin"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:paddingright</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@dimen/activity_horizontal_margin"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:paddingtop</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@dimen/activity_vertical_margin"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Tools:context</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "cn.buaa.z1.MainActivity"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">android:orientation</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "vertical"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">EditText</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:id</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@+id/et1"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_width</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "match_parent"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_height</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "wrap_content"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">/></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">Button</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_width</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "match_parent"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_height</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "wrap_content"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:text</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "open"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:onclick</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "open"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">/></span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></</span></span><span style="color: #800000;"><span style="color: #800000;">LinearLayout</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span></pre><p><p>4. Layout of the second page</p></p><pre><span style="color: #0000ff;"><span style="color: #0000ff;"><?</span></span><span style="color: #ff00ff;"><span style="color: #ff00ff;">XML version= "1.0" encoding= "utf-8"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">?></span></span><span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">LinearLayout</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">xmlns:android</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "http://schemas.android.com/apk/res/android"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Xmlns:tools</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "http://schemas.android.com/tools"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_width</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "match_parent"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_height</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "match_parent"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:paddingbottom</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@dimen/activity_vertical_margin"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:paddingleft</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@dimen/activity_horizontal_margin"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:paddingright</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@dimen/activity_horizontal_margin"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:paddingtop</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@dimen/activity_vertical_margin"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Tools:context</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "cn.buaa.z1.Main2Activity"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">android:orientation</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "vertical"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">EditText</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:id</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@+id/et2"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_width</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "match_parent"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_height</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "wrap_content"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">/></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">Button</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_width</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "match_parent"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:layout_height</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "wrap_content"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:text</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "return"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:onclick</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "retu"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">/></span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></</span></span><span style="color: #800000;"><span style="color: #800000;">LinearLayout</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span></pre><p><p>5. XML Configuration</p></p><pre><span style="color: #0000ff;"><span style="color: #0000ff;"><?</span></span><span style="color: #ff00ff;"><span style="color: #ff00ff;">XML version= "1.0" encoding= "utf-8"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">?></span></span><span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">Manifest</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">xmlns:android</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "http://schemas.android.com/apk/res/android"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;"></span> package</span><span style="color: #0000ff;"><span style="color: #0000ff;">= "cn.buaa.z1"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">Application</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:allowbackup</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "true"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:icon</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@mipmap/ic_launcher"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:label</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@string/app_name"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:supportsrtl</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "true"</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:theme</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "@style/apptheme"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">Activity</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:name</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">=". Mainactivity "</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">Intent-filter</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">Action</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:name</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "android.intent.action.MAIN"</span></span> <span style="color: #0000ff;"><span style="color: #0000ff;">/></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">category</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:name</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "android.intent.category.LAUNCHER"</span></span> <span style="color: #0000ff;"><span style="color: #0000ff;">/></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"></</span></span><span style="color: #800000;"><span style="color: #800000;">Intent-filter</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"></</span></span><span style="color: #800000;"><span style="color: #800000;">Activity</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">Activity</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:name</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">=". Main2activity "</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">Intent-filter</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">Action</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:name</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "sec"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></</span></span><span style="color: #800000;"><span style="color: #800000;">Action</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"><</span></span><span style="color: #800000;"><span style="color: #800000;">category</span></span><span style="color: #ff0000;"><span style="color: #ff0000;">Android:name</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">= "android.intent.category.DEFAULT"</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">/></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"></</span></span><span style="color: #800000;"><span style="color: #800000;">Intent-filter</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"></</span></span><span style="color: #800000;"><span style="color: #800000;">Activity</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span> <span style="color: #0000ff;"><span style="color: #0000ff;"></</span></span><span style="color: #800000;"><span style="color: #800000;">Application</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span><span style="color: #0000ff;"><span style="color: #0000ff;"></</span></span><span style="color: #800000;"><span style="color: #800000;">Manifest</span></span><span style="color: #0000ff;"><span style="color: #0000ff;">></span></span></pre><p><p></p></p><p><p>Usage of Startactivityforresult (Android)</p></p></span>
