activity_main.xml的完整代碼:
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MainActivity.java里的完整代碼:
import android.app.Activity; import android.os.Bundle; import android.text.method.HideReturnsTransformationMethod; import android.text.method.PasswordTransformationMethod; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.TextView; public class MainActivity extends Activity { private TextView editText1; private CheckBox checkBox1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); editText1 =(TextView) findViewById(R.id.editText1); checkBox1=(CheckBox) findViewById(R.id.checkBox1); checkBox1.setOnCheckedChangeListener(new OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { // TODO Auto-generated method stub if(isChecked){ //如果選中,顯示密碼 editText1.setTransformationMethod(HideReturnsTransformationMethod.getInstance()); }else{ //否則隱藏密碼 editText1.setTransformationMethod(PasswordTransformationMethod.getInstance()); } } }); } }
關(guān)鍵是:
editText1.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
editText1.setTransformationMethod(PasswordTransformationMethod.getInstance());
效果如下: