Android学习笔记

Android Studio

创建发布apk：Build-Generate /APK...

Android Studio目录结构

Activity继承AppCompatActivity隐藏标题栏/状态栏

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

getSupportActionBar().hide();//隐藏标题栏

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,

WindowManager.LayoutParams.FLAG_FULLSCREEN); // 隐藏状态栏

setContentView(R.layout.activity_main);

}

//全透明状态栏开始
if (Build.VERSION.SDK_INT >= 21) {
    View decorView = getWindow().getDecorView();
    int option = View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
            | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
    decorView.setSystemUiVisibility(option);
    getWindow().setNavigationBarColor(Color.TRANSPARENT);
    getWindow().setStatusBarColor(Color.TRANSPARENT);
}

ActionBar actionBar = getSupportActionBar();
actionBar.hide();

//全透明状态栏结束

Button按钮事件

btn_skip = findViewById(R.id.button);

btn_skip.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

Intent intent = new Intent(MainActivity.this,Main.class);

startActivity(intent);

MainActivity.this.finish();

}

});

Android Studio报错信息

Modifier 'private' not allowed here：此处不允许使用修饰符

Android学习笔记

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