Android开发小技艺汇总

1.Android根据包名打开应用：

public void startAPP(String appPackageName){
??try{
???Intent intent = this.getPackageManager().getLaunchIntentForPackage(appPackageName);
???startActivity(intent);
??}catch(Exception e){
???Toast.makeText(this, "没有安装", Toast.LENGTH_LONG).show();
??}
?}?