Android版 五星红旗，android版五星红旗

Android版 五星红旗，android版五星红旗

<无详细内容>

1.代码

import android.app.Activity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;

public class StarActivity extends Activity {
	Button[] s = new Button[5];

	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		DisplayMetrics metric = new DisplayMetrics();
		getWindowManager().getDefaultDisplay().getMetrics(metric);
		LinearLayout linearLayout = (LinearLayout)findViewById(R.id.ll);
		LinearLayout.LayoutParams llParams = new LinearLayout.LayoutParams(
				LinearLayout.LayoutParams.FILL_PARENT,
				(metric.widthPixels * 2) / 3);
		linearLayout.setLayoutParams(llParams);
		RelativeLayout rl = (RelativeLayout) findViewById(R.id.rl);
		for (int i = 0; i < 5; i++) {
			s[i] = new Button(this);
			s[i].setId(i + 1);
			s[i].setText("★");
			if (i == 0)
				s[i].setTextSize(70);
			else
				s[i].setTextSize(20);
			s[i].setTextColor(0xffffff00);
			s[i].setBackgroundColor(0x00000000);
			s[i].setPadding(0, 0, 0, 0);
			rl.addView(s[i]);
	
		}
		RelativeLayout.LayoutParams params1 = (RelativeLayout.LayoutParams) s[1]
				.getLayoutParams();
		if (params1 == null)
			params1 = new RelativeLayout.LayoutParams(
					RelativeLayout.LayoutParams.WRAP_CONTENT,
					RelativeLayout.LayoutParams.WRAP_CONTENT);
		params1.addRule(RelativeLayout.RIGHT_OF, s[0].getId());
		s[1].setLayoutParams(params1);
		
		RelativeLayout.LayoutParams params2 = (RelativeLayout.LayoutParams) s[2]
				.getLayoutParams();
		if (params2 == null)
			params2 = new RelativeLayout.LayoutParams(
					RelativeLayout.LayoutParams.WRAP_CONTENT,
					RelativeLayout.LayoutParams.WRAP_CONTENT);
		params2.addRule(RelativeLayout.RIGHT_OF, s[1].getId());
		params2.addRule(RelativeLayout.BELOW, s[1].getId());
		s[2].setLayoutParams(params2);
		
		RelativeLayout.LayoutParams params3 = (RelativeLayout.LayoutParams) s[3]
				.getLayoutParams();
		if (params3 == null)
			params3 = new RelativeLayout.LayoutParams(
					RelativeLayout.LayoutParams.WRAP_CONTENT,
					RelativeLayout.LayoutParams.WRAP_CONTENT);
		params3.addRule(RelativeLayout.RIGHT_OF, s[1].getId());
		params3.addRule(RelativeLayout.BELOW, s[2].getId());
		s[3].setLayoutParams(params3);
		
		RelativeLayout.LayoutParams params4 = (RelativeLayout.LayoutParams) s[4]
				.getLayoutParams();
		if (params4 == null)
			params4 = new RelativeLayout.LayoutParams(
					RelativeLayout.LayoutParams.WRAP_CONTENT,
					RelativeLayout.LayoutParams.WRAP_CONTENT);
		params4.addRule(RelativeLayout.RIGHT_OF, s[0].getId());
		params4.addRule(RelativeLayout.BELOW, s[3].getId());
		s[4].setLayoutParams(params4);
	}
}

2.xml

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

    <LinearLayout
        android:id="@+id/ll"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="#ff0000" >

        <RelativeLayout
            android:id="@+id/rl"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="5dp"
            android:layout_marginTop="5dp" >
        </RelativeLayout>
    </LinearLayout>

</LinearLayout>

3.[图片] device-2012-11-09-152022.png