android 换肤项目（可以实现随机换肤）

package wang.sc; import android.app.Activity; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.widget.Button; import android.widget.ImageButton; import android.widget.LinearLayout; import android.widget.Toast; public class GridviewActivity extends Activity { /** Called when the activity is first created. */ public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); SharedPref pe = new SharedPref(); int dra = pe.getpreferencedr(this); int sty = pe.getpreferencest(this); LinearLayout lay = (LinearLayout) this.findViewById(R.id.main); lay.setBackgroundResource(dra); setTheme(sty); setContentView(lay); Button button = (Button) findViewById(R.id.button); button.setOnClickListener(new android.view.View.OnClickListener() { @Override public void onClick(View v) { Builder dialog = new AlertDialog.Builder(GridviewActivity.this) .setIcon(R.drawable.appearance) .setTitle("您希望换主题吗？") .setPositiveButton( "是", new android.content.DialogInterface.OnClickListener() { public void onClick(DialogInterface dia, int whichButton) { LayoutInflater factory = LayoutInflater .from(GridviewActivity.this); final View diaView = factory.inflate( R.layout.dialog, null); ImageButton button = (ImageButton) diaView .findViewById(R.id.qingchun); button .setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Toast .makeText( GridviewActivity.this, "尽情的在青春飞扬世界里畅游吧", Toast.LENGTH_SHORT) .show(); Intent intent = new Intent(); intent .setClass( GridviewActivity.this, Qingchun.class); GridviewActivity.this .startActivity(intent); finish(); } }); ImageButton button1 = (ImageButton) diaView .findViewById(R.id.huanghun); button1 .setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Toast .makeText( GridviewActivity.this, "尽情的在黄昏静谧世界里畅游吧", Toast.LENGTH_SHORT) .show(); Intent intent = new Intent(); intent .setClass( GridviewActivity.this, Huanghun.class); GridviewActivity.this .startActivity(intent); finish(); } }); ImageButton button2 = (ImageButton) diaView .findViewById(R.id.jiqing); button2 .setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Toast .makeText( GridviewActivity.this, "尽情的在激情四射世界里畅游吧", Toast.LENGTH_SHORT) .show(); Intent intent = new Intent(); intent .setClass( GridviewActivity.this, jiqing.class); GridviewActivity.this .startActivity(intent); finish(); } }); ImageButton button3 = (ImageButton) diaView .findViewById(R.id.lvyi); button3 .setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Toast .makeText( GridviewActivity.this, "尽情的在绿意盎然世界里畅游吧", Toast.LENGTH_SHORT) .show(); Intent intent = new Intent(); intent .setClass( GridviewActivity.this, lvyi.class); GridviewActivity.this .startActivity(intent); finish(); } }); ImageButton button4 = (ImageButton) diaView .findViewById(R.id.weilan); button4 .setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Toast .makeText( GridviewActivity.this, "尽情的在深度蔚蓝世界里畅游吧", Toast.LENGTH_SHORT) .show(); Intent intent = new Intent(); intent .setClass( GridviewActivity.this, weilan.class); GridviewActivity.this .startActivity(intent); finish(); } }); ImageButton button5 = (ImageButton) diaView .findViewById(R.id.suiji); button5 .setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(); intent .setClass( GridviewActivity.this, jindu.class); GridviewActivity.this .startActivity(intent); finish(); } }); Builder dlg = new AlertDialog.Builder( GridviewActivity.this).setView( diaView).setIcon( R.drawable.jiqing).setTitle( "选择您喜欢的主题"); dlg.create(); dlg.show(); } }) .setNegativeButton( "否", new android.content.DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Toast .makeText( GridviewActivity.this, "您已经取消主题设置", Toast.LENGTH_SHORT) .show(); } }); dialog.create(); dialog.show(); } }); } }