LinearLayout佈局

一、程序運行效果

 

 

二、代碼

1. ex04.java

public class ex02 extends Activity { private final int WC = LinearLayout.LayoutParams.WRAP_CONTENT; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); LinearLayout layout = new LinearLayout(this); layout.setOrientation(LinearLayout.VERTICAL); ImageButton btnOk = new ImageButton(this); Drawable dwOk = this.getResources().getDrawable(R.drawable.ex03_button_ok); btnOk.setImageDrawable(dwOk); LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(WC, WC); layout.addView(btnOk, param); ImageButton btnExit = new ImageButton(this); Drawable dwExit = this.getResources().getDrawable(R.drawable.ex03_button_exit); btnExit.setImageDrawable(dwExit); layout.addView(btnExit, param); LinearLayout out_layout = new LinearLayout(this); out_layout.setOrientation(LinearLayout.HORIZONTAL); out_layout.addView(layout, param); Button btn3 = new Button(this); btn3.setText("Button3"); btn3.setTextColor(Color.RED); LinearLayout.LayoutParams param2 = new LinearLayout.LayoutParams(WC, WC); param2.topMargin = 30; out_layout.addView(btn3, param2); setContentView(out_layout); btnOk.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { setTitle("this OK button"); } }); btnExit.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { finish(); } }); } }

 

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