Android學習筆記

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標籤:android   style   http   檔案   os   資料   

<一>設定全屏

1、在onCreat方法中setContentView()之前插入requestWindowFeature(Window.FEATURE_NO_TITLE);//取消標題列

getWindow().setFlags(WindowManager.LayoutParams. FLAG_FULLSCREEN ,WindowManager.LayoutParams. FLAG_FULLSCREEN);//取消狀態列

註:這種方法在啟動activity時會閃現狀態列之後再全屏

2、在manifest裡面配置:<activity android:theme="@android:style/Theme.NoTitleBar.Fullscreen" />只在當前Activity內顯示全屏

<application  android:theme="@android:style/Theme.NoTitleBar.Fullscreen"  />為整個應用配置全螢幕顯示

3、/** * 全屏切換 */

public void fullScreenChange() {

  SharedPreferences mPreferences = PreferenceManager.getDefaultSharedPreferences(this);

  boolean fullScreen = mPreferences.getBoolean("fullScreen", false);

  WindowManager.LayoutParams attrs = getWindow().getAttributes(); 

  System.out.println("fullScreen的值:" + fullScreen);

  if (fullScreen) {

      attrs.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN); 

      getWindow().setAttributes(attrs); 

      //取消全屏設定

      getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);

      mPreferences.edit().putBoolean("fullScreen", false).commit() ;

  } else {

      attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN; 

      getWindow().setAttributes(attrs); 

      getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS); 

      mPreferences.edit().putBoolean("fullScreen", true).commit();

      }

}

 

<二>Activity之間跳轉傳值

採用Intent

MainActivity

    Intent in = new Intent(MainActivity.this,ToActivity.class);
    Bundle Bu = new Bundle();//傳多值的載體
    Bu.putString("Name", str);
    in.putExtras(Bu);
    startActivity(in);

ToActivity

           Bundle bundle = this.getIntent().getExtras();

    T2=(TextView)findViewById(R.id.helloview);

    /*擷取Bundle中的資料,注意類型和key*/

    String name = bundle.getString("Name");

<三>TabHost

TabHost tabHost = (TabHost) findViewById(R.id.tabhost);
tabHost.setup();
tabHost.addTab(tabHost.newTabSpec("tab1").setIndicator("Tab1").setContent(R.id.view1));
tabHost.addTab(tabHost.newTabSpec("tab2").setIndicator("Tab2").setContent(R.id.view2));
tabHost.addTab(tabHost.newTabSpec("tab3").setIndicator("Tab3").setContent(R.id.view3));

 

xml布局檔案

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/hometabs"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >

    <TabHost
        android:id="@+id/tabhost"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:orientation="vertical">

            <FrameLayout
                  android:id="@android:id/tabcontent"
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content">

                  <TextView
                        android:id="@+id/view1"
                        android:layout_width="fill_parent"
                        android:layout_height="fill_parent"
                        android:text="第一個標籤" />

                  <TextView
                        android:id="@+id/view2"
                        android:layout_width="fill_parent"
                        android:layout_height="fill_parent"
                        android:text="第二個標籤" />

                  <TextView
                        android:id="@+id/view3"
                        android:layout_width="fill_parent"
                        android:layout_height="fill_parent"
                        android:text="第三個標籤" />
            </FrameLayout>

            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" >
                <TabWidget
                    android:id="@android:id/tabs"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_alignParentBottom="true">
                </TabWidget>
            </RelativeLayout>

        </LinearLayout>
    </TabHost>
</LinearLayout>

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