Android全域資源訪問

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package com.example.metrox.l12;import android.support.v7.app.ActionBar;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.widget.Button;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        //setContentView(R.layout.activity_main);        TextView tv = new TextView(this);        tv.setText("Android全域資源訪問");        //setContentView(tv);        LinearLayout l = new LinearLayout(this);        final ImageView iv = new ImageView(this);        iv.setImageResource(R.mipmap.ic_launcher);        Button btn = new Button(this);        btn.setText("開啟另一個Content");        btn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                setContentView(iv);            }        });        l.addView(tv);        l.addView(btn);        setContentView(l);    }}

 

Android全域資源訪問